There's a show on netflix, under documentaries, about black market organs. It was a rather interesting show. Apparently its rather common for Americans to fly out to China to get organ transplants due to extensive cost and waiting lists here in the US.

One story they had an Indian woman who had sold her kidney to support her family. The "dealers" promised her 3-6K and only gave her $1000-1500. Several years after, her son developed kidney failure...